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<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <a href="https://www.baidu.com/">百度</a>

    <!--  表格-->
      <table border="1" width="500" height="300" cellpadding="40" align="center">
        <thead>
            <tr>
                <th>姓名</th>
                <th>性别</th>
                <th>年龄</th>
            </tr>
        </thead>
        
        <thead>

        </thead>

        <!-- <tr>
            <td>姓名</td>
            <td>性别</td>
            <td>年龄</td>
        </tr> -->
        <tbody>
            <tr>
                <td>张三</td>
                <td rowspan="2">男</td>
                <td>3</td>
            </tr>
            <tr>
                <td>李四</td>
                <!-- <td>男</td> -->
                <td>4</td>
            </tr>
            <tr>
                <td colspan="2">王五/女</td>
                <!-- <td >女</td> -->
                <td>5</td>
            </tr>
        </tbody>
        
      </table>
</body>
</html>